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Digital watermarking for copyright protection of MPEG2 compressed video

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5 Author(s)
Tae-Yun Chung ; Opt. Syst. Lab., Samsung Electron. Co. Ltd., South Korea ; Min-Suk Hong ; Young-Nam Oh ; Dong-Ho Shin
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Digital watermarking is the technique which embeds an invisible signal including owner identification and copy control information into multimedia data such as audio, video, images, for copyright protection. This paper proposes a new watermarking technique which is appropriate for the MPEG-2 video coding system by extending the direct sequence spread spectrum. The proposed watermarking scheme in this paper minimizes the perceptual degradation of video quality, caused by the embedded watermark through controlling the strength and area of embedding with respect to the global and local characteristics of the video sequences. And this technique can also directly extract the embedded watermark from the watermarked MPEG-2 compressed video stream without using original video sequences. Simulation results show that the proposed scheme is robust to various attacks to remove the embedded watermark and is feasible for real time system implementation

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Consumer Electronics, IEEE Transactions on  (Volume:44 ,  Issue: 3 )